I wanna upgrade my system BUT..

I had 2 15'' L7s with a 15 watt Kicker amp drilled to the back of the box...it took like 75% of the trunk but there was still room for other things back there...I dont travel much so it wasnt a big deal...the box was supppppppppper Heavy and getting back there was like firguring out a math problem...with trying diff angles and everything ha...in the end it was tons of bass I loved it... Id open the trunk and park somewhere and get complains all the time...but I feel that I grew out of that phase so I sold it all and am going for a single L7 (15") with a 1000watt drilled to it and it should be enough with still 80% of the trunk for other use... Door speakers are a Must if u add base...I would say Polk Audio is ur best bet...add a 4 ch amp to that for better results...thats my next project!!!!!!!